CN105380505B - Pressure adjusting device for pressure limiting valve and electric heating cooking utensil - Google Patents
Pressure adjusting device for pressure limiting valve and electric heating cooking utensil Download PDFInfo
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- CN105380505B CN105380505B CN201410447246.3A CN201410447246A CN105380505B CN 105380505 B CN105380505 B CN 105380505B CN 201410447246 A CN201410447246 A CN 201410447246A CN 105380505 B CN105380505 B CN 105380505B
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Abstract
The invention provides a pressure adjusting device for a pressure limiting valve and an electric heating cooking utensil. The pressure adjusting device for the pressure limiting valve comprises a first magnet, a pressure adjusting plate, a screw rod, a stepping motor and an electric control board. The first magnet is installed on the pressure limiting valve. The pressure adjusting plate is sleeve joint with a steam discharge pipe. A second magnet attracting the first magnet is arranged on the pressure adjusting plate. The stepping motor can drive a straight line of the screw rod to stretch out or linearly contract. The linear movement of the screw rod can drive the pressure adjusting plate to axially move along the steam discharge pipe in order to adjust the distance between the first magnet and the second magnet and further change pressure limiting level of the pressure limiting valve. The electric control board is connected with the stepping motor and used for controlling work of the stepping motor. The pressure adjusting device for the pressure limiting valve is capable of changing pressure limiting level of the pressure limiting valve to an opening of the steam discharge pipe such that pressure limiting value of the pressure limiting valve can be automatically adjusted.
Description
Technical field
The present invention relates to kitchen utensils field, more specifically, be related to a kind of pressure limiting valve pressure-regulating device and including
The electrical heating cooking apparatus of the pressure-regulating device.
Background technology
Voltage force pan can enter horizontal high voltage culinary art because of it, and culinary art effect is good, the advantages of energy-conservation, it has also become kitchen indispensability electrical equipment
One of.But electric pressure cooking saucepan in the market, the voltage limiting value of its pressure limiting valve predominantly can not be adjusted, or manually be adjusted；Limit
Pressure value can not be adjusted, and cooking process does not seethe with excitement, and adjust bother very much manually, and be difficult to grasp opportunity, and be adjusted manually
The switching of high and low pressure can only be realized, pressure limiting pressure adjusts single, it is impossible to meet the different culinary art pressure demands of various foods.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.
For this purpose, it is an advantage of the invention to provide a kind of pressure-regulating device of pressure limiting valve, the pressure-regulating device
Pressure limiting pressure of the pressure limiting valve to the steam discharge mouth of pipe can either be changed, can make pressure limiting valve that there is the electrodeless work(for automatically adjusting voltage limiting value again
Energy.
It is a further object of the invention to provide a kind of electrical heating cooking apparatus including above-mentioned pressure-regulating device.
For achieving the above object, the embodiment of one side of the invention provides a kind of pressure regulation dress of pressure limiting valve
Put, the pressure limiting valve can be set in up or down at the steam discharge mouth of pipe of electrical heating cooking apparatus, the pressure-regulating device bag
Include：The first magnet on the pressure limiting valve；The regulator board being set on the gland steam exhauster, is provided with the regulator board
The second magnet attracted each other with first magnet；Screw rod, the screw rod rectilinear movement can drive the regulator board along described
The axis movement of gland steam exhauster, to adjust the distance between first magnet and described second magnet, and then changes the pressure limiting
The pressure limiting pressure of valve；Motor, is provided with boss on the shell of the motor, be provided with the boss and the spiral shell
The screwed hole that bar is engaged, one end of the screw rod is screwed into the screwed hole and is connected with the rotor of the motor, institute
Stating motor can drive the screw rod straight line to stretch out or straight line retraction；And electric-controlled plate, the electric-controlled plate and stepping electricity
Machine is connected, for controlling the work of the motor.
The pressure-regulating device of the pressure limiting valve that first aspect present invention embodiment is provided, can change pressure limiting valve to gland steam exhauster
The pressure limiting pressure of mouth, so that the voltage limiting value of pressure limiting valve electrodeless can be automatically adjusted, specifically, arranges first on pressure limiting valve
Magnet, arranges the second magnet attracted each other with the first magnet, that is to say, that on the axial direction of gland steam exhauster on regulator board
The first magnet and the second magnet that setting attracts each other so that regulator board and pressure limiting valve can be attracted each other using magnetic force, by step
Stepper motor drive screw straight line stretches out the distance between reduction regulator board and pressure limiting valve so that between the first magnet and the second magnet
Suction increase, it is achieved thereby that the electrodeless purpose for automatically adjusting of the voltage limiting value of pressure limiting valve, with prior art using regulation manually
Mode compare, first, the pressure-regulating device of pressure limiting valve has simple structure, small volume, low cost, easy for installation etc. excellent
Point；Secondly, when pressure limiting valve needs to keep certain pressure, only need to control step motor drive screw rod straight line and reach to require position
Put, now, by the cooperation of screw rod and screwed hole so that screw rod realizes self-locking, so that the first magnet and the second magnetic
The distance between body is invariable, i.e. the pressure to the steam discharge mouth of pipe of pressure limiting valve is constant, and keeps without the need for being powered, and is effectively reduced
The caloric value of motor, improves the service life of motor；Finally, the angle step number that rotor is rotated can be made by electric-controlled plate control
The straight line extension elongation for obtaining screw rod is controllable, i.e., the distance between the first magnet and the second magnet are adjustable, it is achieved thereby that pressure limiting valve
The electrodeless purpose for automatically adjusting of voltage limiting value.
In addition, the pressure-regulating device of the pressure limiting valve of the above embodiment of the present invention offer also has following supplementary technology special
Levy：
According to one embodiment of present invention, the pressure-regulating device of the pressure limiting valve also includes：Back-moving spring, it is described multiple
One end of position spring is connected with the regulator board, and the other end is connected with the pot cover of the electrical heating cooking apparatus.
According to one embodiment of present invention, first magnet and second magnet are ferromagnet or permanent magnetism
Body.
The embodiment of second aspect of the invention provides a kind of pressure-regulating device of pressure limiting valve, and the pressure limiting valve can be gone up
Under be movably set at the steam discharge mouth of pipe of electrical heating cooking apparatus, the pressure-regulating device includes：Installed in the pressure limiting
The first magnet on valve；The regulator board being set on the gland steam exhauster, is provided with and the first magnet phase on the regulator board
The second magnet for mutually attracting；Screw rod；Drive rod, on a bar side of the drive rod screw thread being engaged with the screw rod is provided with
Hole；Motor, forms installing plate on the shell of the motor, one end of the screw rod turns with the motor
Son is connected, and the other end is screwed into the screwed hole and is rotatably coupled with the installing plate, and the rotor can drive the screw rod
Along own axis, the rotation of the screw rod can drive the drive rod straight line to stretch out or straight line retraction, the drive rod
Straight line stretch out or straight line retract can drive the regulator board along the gland steam exhauster axis move, to adjust first magnetic
The distance between body and described second magnet, and then change the pressure limiting pressure of the pressure limiting valve；And electric-controlled plate, the electric-controlled plate with
The motor is connected, for controlling the work of the motor.
The pressure-regulating device of the pressure limiting valve that second aspect present invention embodiment is provided, can change pressure limiting valve to gland steam exhauster
The pressure limiting pressure of mouth, so that the voltage limiting value of pressure limiting valve electrodeless can be automatically adjusted, specifically, arranges first on pressure limiting valve
Magnet, arranges the second magnet attracted each other with the first magnet, that is to say, that on the axial direction of gland steam exhauster on regulator board
The first magnet and the second magnet that setting attracts each other so that regulator board and pressure limiting valve can be attracted each other using magnetic force, by step
Stepper motor drive screw drives drive rod straight line to stretch out the distance between reduction regulator board and pressure limiting valve along own axis, makes
The suction increase between the first magnet and the second magnet is obtained, it is achieved thereby that the electrodeless mesh for automatically adjusting of the voltage limiting value of pressure limiting valve
, compared with prior art is by the way of adjust manually, first, the pressure-regulating device of pressure limiting valve has simple structure, body
Product little, low cost, it is easy for installation the advantages of；Secondly, when pressure limiting valve needs to keep certain pressure, only motor need to be controlled
The rotation of drive screw drives drive rod to reach and requires position, now, by the cooperation of screw rod and screwed hole so that drive
Lever realizes self-locking so that the distance between the first magnet and the second magnet are invariable, i.e., pressure limiting valve to gland steam exhauster
The pressure of mouth is constant, and keeps without the need for being powered, and significantly reduces the caloric value of motor, improves the service life of motor；Most
Afterwards, the angle step number that rotor is rotated can by electric-controlled plate control so that the velocity of rotation of screw rod is controllable, so that drive rod is stretched
Go out length controllable, i.e., the distance between the first magnet and the second magnet are adjustable, it is achieved thereby that the voltage limiting value of pressure limiting valve is electrodeless certainly
The dynamic purpose for adjusting.
In addition, the pressure-regulating device of the pressure limiting valve of the above embodiment of the present invention offer also has following supplementary technology special
Levy：
According to one embodiment of present invention, the pressure-regulating device of described pressure limiting valve also includes：Back-moving spring, it is described
One end of back-moving spring is connected with the regulator board, and the other end is connected with the pot cover of the electrical heating cooking apparatus.
According to one embodiment of present invention, first magnet and second magnet are ferromagnet or permanent magnetism
Body.
The embodiment of third aspect of the present invention provides a kind of electrical heating cooking apparatus, including：Pot, in the pot
Electric-controlled plate and heater are installed, the heater is connected with the electric-controlled plate, the electric-controlled plate can control described adding
The work of thermal；Pot cover, the pot cover can be opened or is connected with the pot with closing, and on the pot cover gland steam exhauster is provided with；
The pressure-regulating device of the pressure limiting valve provided with any of the above-described embodiment, the regulator board of the pressure-regulating device is arranged on described
In pot cover, the motor of the pressure-regulating device is arranged in the pot cover or in pot, the motor and institute
State electric-controlled plate to be connected, and can control the work of the motor.
The electrical heating cooking apparatus that the above embodiment of the present invention is provided, including the pressure limiting valve described in any of the above-described embodiment
Pressure-regulating device, therefore, the electrical heating utensil has whole beneficial effects of the pressure-regulating device of above-mentioned pressure limiting valve, here
Repeat no more, in addition, can be required according to different food cookings according to the program arranged on electric-controlled plate, control pressure pot is heated to closing
Suitable operating pressure, specifically, when boiling is needed, electric-controlled plate control drive stepping motor is run after certain step number, is driven
Regulator board moves to opposite position, and it can automatically lock the position after motor is stopped power supply, and now, pressure limiting valve is to steam discharge
The voltage limiting value of pipe is adjusted to certain numerical value more smaller than pressure in pot, and (concrete numerical value should be carried out according to the culinary art performance of different foods
Adjustment) so that by jack-up steam discharge slightly, at the same time, electric-controlled plate sends instruction control thermal and synchronously carries out small fire pressure limiting valve
Power Power Regulation is heated, and maintains constantly boiling in pot；When boosting, electric-controlled plate drive stepping motor is rotated after certain step number, makes limit
, more than operating pressure certain numerical value in pot or to highest voltage limiting value, now, the steam discharge seal of tube can heating liter for the voltage limiting value of pressure valve
Pressure.
In addition, the electrical heating cooking apparatus that the above embodiment of the present invention is provided also has following additional technical feature：
According to one embodiment of present invention, the electrical heating cooking apparatus also includes：Pressure-detecting device, the pressure
Detection means is arranged on pot cover, and is connected with the electric-controlled plate, for detecting the pressure in the electrical heating cooking apparatus,
The electric-controlled plate sends control instruction according to the pressure value for detecting.
According to one embodiment of present invention, the pressure-detecting device is pressure transducer or temperature sensor.
According to one embodiment of present invention, the motor is arranged in the pot, and the pot cover includes：Inner cap
And cover, the cover is fixedly connected with the inner cap, and guide post, the tune of the pressure-regulating device are provided with the cover
The gathering sill being engaged with the guide post is provided with pressing plate, the back-moving spring of the pressure-regulating device is located at the guiding
In groove, one end is resisted against on the end face of the guide post.
According to one embodiment of present invention, the electrical heating cooking apparatus is electric pressure cooking saucepan.
The additional aspect and advantage of the present invention will become obvious in following description section, or by the practice of the present invention
Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment
It is substantially and easy to understand, wherein：
Fig. 1 is that the pressure-regulating device of the pressure limiting valve according to one embodiment of the invention makes pressure limiting valve be in low-pressure state
Cross section structure diagram；
Fig. 2 is that the pressure-regulating device of the pressure limiting valve shown in Fig. 1 illustrates sectional structure of the pressure limiting valve in middle pressure condition
Figure；
Fig. 3 is that the pressure-regulating device of the pressure limiting valve shown in Fig. 1 illustrates sectional structure of the pressure limiting valve in high pressure conditions
Figure；
Fig. 4 is that the pressure-regulating device of the pressure limiting valve according to another embodiment of the present invention makes pressure limiting valve be in low pressure shape
The cross section structure diagram of state；
Fig. 5 is that the pressure-regulating device of the pressure limiting valve shown in Fig. 4 illustrates sectional structure of the pressure limiting valve in middle pressure condition
Figure；
Fig. 6 is that the pressure-regulating device of the pressure limiting valve shown in Fig. 4 illustrates sectional structure of the pressure limiting valve in high pressure conditions
Figure；
Fig. 7 is the decomposition texture schematic diagram of the electrical heating cooking apparatus according to another embodiment of the invention；
Fig. 8 is the cross section structure diagram of the pressure limiting valve in low-pressure state of the electrical heating cooking apparatus shown in Fig. 7；
Fig. 9 is A portions structure enlarged diagram in Fig. 8；
Figure 10 is the cross section structure diagram of the pressure limiting valve in middle pressure condition of the electrical heating cooking apparatus shown in Fig. 7；
Figure 11 is B portions structure enlarged diagram in Figure 10；
Figure 12 is the cross section structure diagram of the pressure limiting valve in high pressure conditions of the electrical heating cooking apparatus shown in Fig. 7；
Figure 13 is C portions structure enlarged diagram in Figure 12；
Figure 14 is the pressure limiting pressure of electrical heating cooking apparatus pot inner pressure and the pressure limiting valve in cooking process shown in Fig. 7
Relation schematic diagram over time.
Wherein, the corresponding relation in Fig. 1 to Figure 14 between reference and component names is：
1 pressure limiting valve, 2 gland steam exhausters, 3 first magnets, 4 regulator boards, 41 gathering sills, 42 second magnets, 5 screw rods, 6
Motor, 61 shells, 611 boss, 612 installing plates, 62 rotors, 8 back-moving springs, 9 drive rods, 10 pot covers, 101
Inner cap, 102 covers, 1021 lead columns, 20 pots, 30 electric-controlled plates.
Specific embodiment
It is below in conjunction with the accompanying drawings and concrete real in order to be more clearly understood that the above objects, features and advantages of the present invention
Apply mode to be further described in detail the present invention.It should be noted that in the case where not conflicting, the enforcement of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
Implemented with being different from mode described here using other, therefore, protection scope of the present invention does not receive following public tool
The restriction of body embodiment.
The pressure-regulating device of pressure limiting valve that with reference to the accompanying drawings 1 to 14 description is provided according to some embodiments of the invention and
Electrical heating cooking apparatus containing the pressure-regulating device.
As shown in figure 1, the pressure-regulating device of the pressure limiting valve 1 of one embodiment of the present of invention offer, including：First magnet
3rd, regulator board 4, screw rod 5, motor 6 and electric-controlled plate 30；
Specifically, the first magnet 3 is arranged on pressure limiting valve 1；Regulator board 4 is set on gland steam exhauster, is provided with regulator board 4
The second magnet 42 attracted each other with the first magnet 3；The rectilinear movement of screw rod 5 can drive regulator board 4 to move along the axis of gland steam exhauster,
To adjust the distance between the first magnet 3 and the second magnet 42, and then change the pressure limiting pressure of pressure limiting valve 1；Outside motor 6
Boss 611 is provided with shell 61, the screwed hole being engaged with screw rod 5 is provided with boss 611, one end of screw rod 5 is threaded into
The rotor 62 of Kong Bingyu motors 6 is connected, motor 6 can the straight line of drive screw 5 stretch out or straight line retract；Electric-controlled plate
30 are connected with motor 6, for controlling the work of motor 6.
Wherein, pressure limiting valve 1 can be set in up or down at the gland steam exhauster 2 of electrical heating cooking apparatus.
The pressure-regulating device of the pressure limiting valve 1 that the present embodiment is provided, can change pressure limiting pressure of the pressure limiting valve 1 to gland steam exhauster 2
Power, so that the voltage limiting value of pressure limiting valve 1 electrodeless can be automatically adjusted, specifically, arranges the first magnet 3 on pressure limiting valve 1,
The second magnet 42 attracted each other with the first magnet 3 is set on regulator board 4, that is to say, that set on the axial direction of gland steam exhauster
Put the first magnet 3 and the second magnet 42 for attracting each other so that regulator board 4 and pressure limiting valve 1 can be attracted each other using magnetic force, be passed through
The straight line of 6 drive screw of motor 5 stretches out the distance between reduction regulator board 4 and pressure limiting valve 1 so that the first magnet 3 and second
Suction increase between magnet 42, it is achieved thereby that the electrodeless purpose for automatically adjusting of the voltage limiting value of pressure limiting valve 1, adopts with prior art
Compared with the manual mode for adjusting, first, the pressure-regulating device of pressure limiting valve 1 has simple structure, small volume, low cost, peace
Fill the advantages of facilitating；Secondly, as shown in Figure 1, Figure 2 and Figure 3, when pressure limiting valve 1 needs to keep certain pressure, step need to only be controlled
The straight line of 6 drive screw of stepper motor 5 is reached and requires position, now, by the cooperation of screw rod 5 and screwed hole so that screw rod 5
Realize self-locking so that the distance between the first magnet 3 and the second magnet 42 are invariable, i.e., pressure limiting valve 1 to gland steam exhauster 2
Pressure it is constant, and without the need for be powered keep, significantly reduce the caloric value of motor, improve the service life of motor；Finally,
The angle step number that rotor 62 is rotated can be controlled by electric-controlled plate 30 so that the straight line extension elongation of screw rod 5 is controllable, i.e. the first magnet 3
It is adjustable with the distance between the second magnet 42, it is achieved thereby that the electrodeless purpose for automatically adjusting of the voltage limiting value of pressure limiting valve 1.
Specifically, the setting of boss 611 can increase the axial length of screwed hole, so that the self-locking of screw rod 5 more may be used
Lean on；The section of one end of screw rod 5 offers the other end shape identical mounting groove with screw rod 5, spiral shell in non-circular on rotor 62
In one end insertion mounting groove of bar 5, prevent screw rod 5 relative to mounting groove from rotating, rotor 62 is linked into an integrated entity with screw rod 5.
Preferably, the first magnet 3 and the second magnet 42 are ferromagnet or permanent magnet.
According to a specific embodiment of the present embodiment, pressure-regulating device also includes：Back-moving spring 8, back-moving spring 8
One end is connected with regulator board 4, and the other end is connected with the pot cover 10 of electrical heating cooking apparatus.
For the ease of the assembling and installation of pressure-regulating device, the other end for making screw rod 5 contacts with regulator board 4 and fixes
Connection, but such connected mode, when screw rod 5 promotes regulator board 4 to move along the axis of gland steam exhauster, adjustment is arranged on regulator board
The distance of the second magnet 42 and the first magnet 3 being arranged on pressure limiting valve 1 on 4, when changing the pressure limiting pressure of pressure limiting valve 1, because
Regulator board 4 is not fixedly connected with the other end of screw rod 5 so that regulator board 4 can not reset with the reset of screw rod 5, in order to solve
The problems referred to above, arrange back-moving spring 8 between the pot cover 10 and regulator board 4 of electrical heating cooking apparatus, when screw rod 5 promotes regulator board
4 along during the axis movement of gland steam exhauster, and back-moving spring 8 is compressed, and produces deformation, and when screw rod 5 resets, regulator board 4 loses screw rod 5
Active force to it, i.e. back-moving spring 8 lose extruding force of the screw rod 5 to it, now, the recovery deformation of back-moving spring 8, and band
Dynamic regulator board 4 resets, so that the axis that regulator board 4 can either be along gland steam exhauster in the presence of screw rod 5 is moved, again can be
Reset in the presence of back-moving spring 8, and then ensure that the pressure limiting pressure of pressure limiting valve 1 can either increase and can restore to the original state.
Certainly, if the other end of screw rod 5 is directly fixedly connected with regulator board 4, for reduces cost, then can be not provided with resetting
Spring 8, if not considering cost, in order to avoid the connection between screw rod 5 and regulator board 4 is unreliable, fracture occur causes regulator board 4
Irreducible situation occurs, and may also set up back-moving spring 8.
It should be noted that when screw rod 5 apart from regulator board 4 farther out when, can be by push rod, push rod, lever etc. and regulator board 4
Contact or be connected, will not be described here.
As shown in figure 4, the pressure-regulating device of the pressure limiting valve 1 of another embodiment of the present invention offer, including：First magnet 3,
Regulator board 4, screw rod 5, drive rod 9, motor 6 and electric-controlled plate 30；
Specifically, the first magnet 3 is arranged on pressure limiting valve 1, and regulator board 4 is set on gland steam exhauster, is provided with regulator board 4
The second magnet 42 attracted each other with the first magnet 3, drive rod 9 is L-shaped, is provided with a bar side of drive rod 9 and the phase of screw rod 5
The screwed hole of cooperation, forms installing plate 612, one end of screw rod 5 and the rotor of motor 6 on the shell 61 of motor 6
62 one end is fixedly connected, and the other end is threaded into hole and is rotatably coupled with installing plate 612, and motor 6 can drive screw 5
Along own axis, the rotation of screw rod 5 can drive the straight line of drive rod 9 to stretch out or straight line retraction, and the straight line of drive rod 9 stretches out
Regulator board 4 can be promoted to move to pressure limiting valve 1, to adjust the distance between the first magnet 3 and the second magnet 42, and then change pressure limiting
The pressure limiting pressure of valve 1；Electric-controlled plate 30 is connected with motor 6, for controlling the work of motor 6.
Wherein, pressure limiting valve 1 can be set in up or down at the gland steam exhauster 2 of electrical heating cooking apparatus.
The pressure-regulating device of the pressure limiting valve 1 that the present embodiment is provided, can change pressure limiting pressure of the pressure limiting valve 1 to gland steam exhauster 2
Power, so that the voltage limiting value of pressure limiting valve 1 electrodeless can be automatically adjusted, specifically, arranges the first magnet 3 on pressure limiting valve 1,
The second magnet 42 attracted each other with the first magnet 3 is set on regulator board 4, that is to say, that set on the axial direction of gland steam exhauster
Put the first magnet 3 and the second magnet 42 for attracting each other so that regulator board 4 and pressure limiting valve 1 can be attracted each other using magnetic force, be passed through
The drive screw 5 of motor 6 drives the straight line of drive rod 9 to stretch out between reduction regulator board 4 and pressure limiting valve 1 along own axis
Distance so that the suction increase between the first magnet 3 and the second magnet 42, it is achieved thereby that the voltage limiting value of pressure limiting valve 1 is electrodeless certainly
The dynamic purpose for adjusting, compared with by the way of prior art is using regulation manually, first, the pressure-regulating device of pressure limiting valve 1 has
Simple structure, small volume, low cost, it is easy for installation the advantages of；Secondly, as shown in Figure 4, Figure 5 and Figure 6, when pressure limiting valve 1 needs to protect
When holding certain pressure, the rotation that need to only control the drive screw 5 of motor 6 drives drive rod 9 to reach to require position,
Now, by the cooperation of screw rod 5 and screwed hole so that drive rod 9 realizes self-locking, so that the first magnet 3 and the second magnet
The distance between 42 is invariable, i.e. the pressure to gland steam exhauster 2 of pressure limiting valve 1 is constant, and keeps without the need for being powered, and is effectively reduced
The caloric value of motor, improves the service life of motor；Finally, the angle step number that rotor 62 is rotated can be controlled by electric-controlled plate 30
System so that the velocity of rotation of screw rod 5 is controllable, so that the extension elongation of drive rod 9 is controllable, i.e. the first magnet 3 and the second magnetic
The distance between body 42 is adjustable, it is achieved thereby that the electrodeless purpose for automatically adjusting of the voltage limiting value of pressure limiting valve 1.
Specifically, the section of one end of screw rod 5 offers the other end shape phase with screw rod 5 in non-circular on rotor 62
Same mounting groove, in one end insertion mounting groove of screw rod 5, prevents screw rod 5 relative to mounting groove from rotating, by rotor 62 and screw rod
5 link into an integrated entity.
According to a specific embodiment of the present embodiment, pressure-regulating device also includes：Back-moving spring 8, back-moving spring 8
One end is connected with regulator board 4, and the other end is connected with the pot cover 10 of electrical heating cooking apparatus.
For the ease of the assembling and installation of pressure-regulating device, and the other end of drive rod 9 is set to contact with regulator board 4 and consolidate
Fixed connection, but such connected mode, when drive rod 9 promotes regulator board 4 to move along the axis of gland steam exhauster, adjustment is arranged on adjusts
The second magnet 42 on pressing plate 4 and the distance of the first magnet 3 being arranged on pressure limiting valve 1, change the pressure limiting pressure of pressure limiting valve 1
When, because regulator board 4 is not fixedly connected with the other end of drive rod 9 so that regulator board 4 can not reset with the reset of drive rod 9,
In order to solve the above problems, back-moving spring 8 is set between the pot cover 10 and regulator board 4 of electrical heating cooking apparatus, when drive rod 9
Promote regulator board 4 along during the axis movement of gland steam exhauster, back-moving spring 8 is compressed, and produces deformation, when drive rod 9 resets, pressure regulation
Plate 4 loses active force of the drive rod 9 to it, i.e. back-moving spring 8 and loses extruding force of the drive rod 9 to it, now, back-moving spring
8 recovery deformation, and drive regulator board 4 to reset, so that regulator board 4 can either be in the presence of drive rod 9 along gland steam exhauster
Axis movement, can reset in the presence of back-moving spring 8 again, and then ensure that the pressure limiting pressure of pressure limiting valve 1 can either increase
Plus and can restore to the original state.
Certainly, if the other end of drive rod 9 is directly fixedly connected with regulator board 4, for reduces cost, then can be not provided with multiple
Position spring 8, if not considering cost, in order to avoid the connection between drive rod 9 and regulator board 4 is unreliable, fracture occur causes to adjust
The irreducible situation of pressing plate 4 occurs, and may also set up back-moving spring 8.
It should be noted that when drive rod 9 apart from regulator board 4 farther out when, can be by push rod, push rod, lever etc. and pressure regulation
Plate 4 contacts or is connected, and will not be described here.
As shown in Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12 and Figure 13, the electrical heating that further embodiment of this invention is provided is cooked
Prepare food utensil, including：The pressure-regulating device of the pressure limiting valve 1 that pot 20, pot cover 10 and any of the above-described embodiment are provided；
Specifically, as shown in Fig. 8, Figure 10 and Figure 12, electric-controlled plate 30 is installed in pot 20 and heater (does not show in figure
Go out), heater is connected with electric-controlled plate 30, the work of the controllable refrigerating/heating apparatus of electric-controlled plate 30, pot cover 10 can open or close with
Pot 20 is connected, and gland steam exhauster is provided with pot cover 10, and the regulator board 4 of pressure-regulating device is arranged in pot cover 10, and pressure is adjusted
The motor 6 of regulating device is arranged in pot cover 10 or in pot 20, and motor 6 is connected with electric-controlled plate 30, electric-controlled plate
The work of 30 control motors 6.
Hot utensil is touched in the electrical heating that the present embodiment is provided, including the pressure of the pressure limiting valve 1 of any of the above-described embodiment adjusts dress
Put, therefore, the electrical heating utensil has whole beneficial effects of the pressure-regulating device of above-mentioned pressure limiting valve 1, will not be described here,
In addition, can be required according to different food cookings according to the program arranged on electric-controlled plate, control pressure pot is heated to suitable work
Pressure, specifically, when boiling is needed, the control of electric-controlled plate 30 drive stepping motor 6 is run after certain step number, drives regulator board
4 move to opposite position, and it can automatically lock the position after motor 6 is stopped power supply, and now, pressure limiting valve 1 is to gland steam exhauster
Voltage limiting value be adjusted to certain numerical value more smaller than pressure in pot (concrete numerical value should be adjusted according to the culinary art performance of different foods
It is whole) so that pressure limiting valve 1 by jack-up steam discharge slightly, at the same time, electric-controlled plate 30 send instruction control heater synchronously carry out it is little
Firepower Power Regulation is heated, and maintains constantly boiling in pot；When boosting, the drive stepping motor 6 of electric-controlled plate 30 is rotated after certain step number,
Make the voltage limiting value of pressure limiting valve 1 more than operating pressure certain numerical value in pot or to highest voltage limiting value, now, the steam discharge seal of tube can add
Heat boosting.
Wherein, it is provided with electric-controlled plate 30 and cooks, Baoshang and multiple gears such as stews, during different gears, heater
Heating power is different.It is understood that electrical heating cooking apparatus generally has various different culinary art selecting modules, for example, boil
Meal, Baoshang, steaming and decocting etc., user is selected when culinary art is started according to cooking purpose, after into boiling stage, can basis
The ongoing cooking operation of electrical heating cooking apparatus selects different boiling culinary art control models.
Preferably, electrical heating cooking apparatus also includes：Pressure-detecting device (not shown), pressure-detecting device is installed
On pot cover 10, and it is connected with electric-controlled plate 30, for detecting the pressure in electrical heating cooking apparatus, electric-controlled plate 30 is according to detection
To pressure value send control instruction.
By taking electric pressure cooking saucepan culinary art as an example, in electric pressure cooking saucepan cooking skill, pressure cooking process is commonly divided into, before playing pressure
Stage, pressure stage, packing stage, buck stage, boiling stage, holding stage.Rise and press the last stage to typically refer to cooking process
Start, heater is started working, the temperature inside cooking apparatus is relatively low and does not also produce the process of pressure；Rise the pressure stage be typically
After referring to heater work a period of time, the temperature inside cooking apparatus rises and produces pressure, and with continuing for heating, pressure is held
The continuous stage for rising；Packing stage typically refers to the pressure inside cooking apparatus and reaches preset pressure value or pre-set pressure range
When, by the working condition for controlling heater, pressure in cooking apparatus is maintained into set point, pressure cooking is carried out to food
Process；Buck stage is typically referred to when there is pressure in cooking apparatus in order to the operation such as carry out uncapping makes pressure in cooking apparatus
The process of reduction；Holding stage is typically referred to adopt less power or adopts the mode of intermittent-heating to maintain in cooking apparatus
Food temperature, user can at any time uncap and take the process of food.It is understood that the segmentation of above-mentioned cooking process is only
It is for the ease of the understanding to cooking process, it would however also be possible to employ additive method is divided to cooking process.
Using pressure-detecting device real-time monitoring pot inner pressure so that the boiling pressure in electrical heating cooking apparatus (boils
Rise the pressure limiting pressure in stage) be capable of achieving it is continuous adjust, the no matter pressure size in cooking apparatus, as long as regulation pressure-limiting valve 1
Pressure limiting pressure so that the pressure limiting pressure of pressure limiting valve 1 is capable of achieving steam discharge boiling less than the pressure in cooking apparatus, can meet various
The culinary art demand of the food of type, and boiling pressure is controllable, the problems such as the food for excessively acutely causing that can avoid seething with excitement overflows
Occur, specifically, electric-controlled plate 30 can control heating system heats to pot inner pressure to suitable pressure value according to different foods,
And pressure-detecting device real-time monitoring pot inner pressure so that electric-controlled plate 30 can according to real-time detection to pressure value send instruction with
Regulator board 4 and the distance of pressure limiting valve 1 that the control adjustment of motor 6 can attract each other, so as to change the pressure limiting pressure of pressure limiting valve 1
Power, makes pressure limiting pressure be slightly below operating pressure in pot, so as to form small pressure reduction, aerofluxuss boiling, so as to efficiently avoid spray
Excessive phenomenon, and realize the purpose of the culinary art of the constantly boiling under different pressures.
It should be noted that do not heat in buck stage, and when persistently adjustment keeps smaller pressure reduction aerofluxuss to shorten blood pressure lowering
Between.
Alternatively, pressure-detecting device is pressure transducer or temperature sensor.
Preferably, as shown in Fig. 9, Figure 11 and Figure 13, motor 6 is arranged in pot 20, and pot cover 10 includes：Inner cap
101 and cover 102, cover 102 is fixedly connected with inner cap 101, and guide post, the tune of pressure-regulating device are provided with cover 102
The gathering sill 41 being engaged with guide post is provided with pressing plate 4, the back-moving spring 8 of pressure-regulating device is located in gathering sill 41,
One end is resisted against on the end face of guide post.
Specifically, when needing to increase the pressure of pressure limiting valve 1, stepping electricity of the control of electric-controlled plate 30 in pot 20
The drive screw 5 of machine 6 or drive rod 9 stretch into regulator board 4 of the jack-up of pot cover 10 in pot cover 10, make to be moved near limit on regulator board 4
Pressure valve 1, to reduce the spacing between the first magnet 3 and the second magnet 42, increases the suction between the first magnet 3 and the second magnet 42
Gravitation, so as to increase the pressure of pressure limiting valve 1, when needing to reduce the pressure of pressure limiting valve 1, the control of electric-controlled plate 30 is arranged on pot 20
On motor 6 will stretch into the inner screw 5 of pot cover 10 or drive rod 9 is retracted to pot 20, make regulator board 4 in back-moving spring 8
In the presence of away from pressure limiting valve 1, to increase the spacing between the first magnet 3 and the second magnet 42, reduce the first magnet 3 and second
Captivation between magnet 42, so as to reduce the pressure of pressure limiting valve 1, in addition, during regulator board 4 is moved, gathering sill 41
Can be that guide effect is played in the movement of regulator board 4, so that the movement of regulator board 4 is more accurate with lead column 1021.
In a specific embodiment of the present embodiment, cooking apparatus is electric pressure cooking saucepan.Certainly, cooking apparatus can also be
Other utensils, such as：Electric cooker etc., here is not repeated one by one.
Combine accompanying drawing by taking electric pressure cooking saucepan as an example below, illustrate electrical heating cooking apparatus provided in an embodiment of the present invention
Control method.
In fig. 14, curve represents pot inner pressure curve, and straight line represents the pressure limiting pressure of pressure limiting valve 1.
As shown in figure 14, pressure last stage, the pressure limiting pressure of pressure-regulating device regulation pressure-limiting valve 1 so that pressure limiting valve 1 are being played
Pressure limiting pressure for maximum, both pressure limiting valve 1 have the first pressure limiting pressure (the first pressure limiting pressure is in 115Kpa or so), this first limit
Pressure pressure is much larger than pot inner pressure, so as to ensure that before boiling stage will not steam discharge, in boiling stage, pressure adjusts dress
The pressure limiting pressure of regulation pressure-limiting valve 1 is put, the pressure limiting pressure for making pressure limiting valve 1 reduces, i.e., pressure limiting valve 1 has the second pressure limiting pressure (the
Two pressure limiting pressure are less than the first pressure limiting pressure simultaneously less than pot inner pressure), in the presence of electric pressure cooking saucepan inner high voltage gas, pressure limiting
Valve 1 is separated with gland steam exhauster 2, so that electric pressure cooking saucepan steam discharge, realizes the purpose of boiling；In packing stage, electric-controlled plate 30 drives
The pressure limiting pressure of the work regulation pressure-limiting valve 1 of dynamic motor 6, makes pressure limiting valve 1 recover to the first pressure limiting pressure, to ensure in pressurize
Stage voltage power pot will not steam discharge；Operation principle and pressurize of the buck stage with the pressure limiting pressure of boiling stage regulation pressure-limiting valve 1
Stage it is basically identical, will not be described here.
It should be noted that in above-mentioned boiling stage, heater can be heated always, and under this kind of pattern, cooking pot
When pressure in tool is more than the second pressure limiting pressure, pressure limiting valve 1 is separated with gland steam exhauster 2, electric pressure cooking saucepan steam discharge pressure release, cooking apparatus
When interior pressure is less than the second pressure limiting pressure, the sealing gland steam exhauster 2 of pressure limiting valve 1 makes the pressure in cooking apparatus in the second pressure limiting pressure
Power fluctuates.If heating power is larger, the pressure in cooking apparatus is set to be more than the second pressure limiting pressure always, then cooking apparatus
Understand steam discharge always.
Certainly, in above-mentioned boiling stage, the pressure in pressure-detecting device real-time detection cooking apparatus can also be passed through, when
When pressure in cooking apparatus is more than the second pressure limiting pressure, stop heating, when the pressure in cooking apparatus is less than the second pressure limiting pressure
During power, begin to warm up.
In sum, the pressure-regulating device of the pressure limiting valve that the present invention is provided, with prior art using the side for adjusting manually
Formula is compared, and first, the pressure-regulating device of pressure limiting valve has the advantages that simple structure, small volume, low cost, easy for installation；Its
Secondary, when pressure limiting valve needs to keep certain pressure, the pressure-regulating device of pressure limiting valve is capable of achieving self-locking, so that the first magnetic
The distance between body and the second magnet are invariable, i.e. the pressure to the steam discharge mouth of pipe of pressure limiting valve is constant, and keep without the need for being powered,
The caloric value of motor is significantly reduced, the service life of motor is improve；Finally, the pressure-regulating device of pressure limiting valve makes first
The distance between magnet and the second magnet are adjustable, it is achieved thereby that the electrodeless purpose for automatically adjusting of the voltage limiting value of pressure limiting valve；This
The electrical heating cooking apparatus of bright offer has whole beneficial effects of the pressure-regulating device of above-mentioned pressure limiting valve.
In describing the invention, term " connected ", " connection ", " fixation ", " installation " etc. all should be interpreted broadly, example
Such as, " connection " can be fixedly connected, or be detachably connected, or be integrally connected；Can be joined directly together, it is also possible to
It is indirectly connected to by intermediary.For the ordinary skill in the art, above-mentioned art can as the case may be understood
Language concrete meaning in the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that the specific features, structure, material or the feature that describe with reference to the embodiment or example are contained in of the invention at least one real
In applying example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.And, the specific features of description, structure, material or feature can in any one or more embodiments or example with
Suitable mode is combined.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (11)
1. a kind of pressure-regulating device of pressure limiting valve, the pressure limiting valve can up or down be set in the row of electrical heating cooking apparatus
At steam pipe mouth, it is characterised in that the pressure-regulating device includes：
The first magnet on the pressure limiting valve；
The regulator board being set on the gland steam exhauster, is provided with second attracted each other with first magnet on the regulator board
Magnet；
Screw rod, screw rod rectilinear movement can drive the regulator board to move along the axis of the gland steam exhauster, to adjust described the
The distance between one magnet and described second magnet, and then change the pressure limiting pressure of the pressure limiting valve；
Motor, is provided with boss on the shell of the motor, be provided with the boss and be engaged with the screw rod
Screwed hole, one end of the screw rod is screwed into the screwed hole and is connected with the rotor of the motor, the stepping electricity
Machine can drive the screw rod straight line to stretch out or straight line is retracted；With
Electric-controlled plate, the electric-controlled plate is connected with the motor, for controlling the work of the motor.
2. the pressure-regulating device of pressure limiting valve according to claim 1, it is characterised in that
Also include：Back-moving spring, one end of the back-moving spring is connected with the regulator board, and the other end is cooked with the electrical heating
The pot cover of utensil of preparing food is connected.
3. the pressure-regulating device of pressure limiting valve according to claim 1 and 2, it is characterised in that
First magnet and second magnet are ferromagnet or permanent magnet.
4. a kind of pressure-regulating device of pressure limiting valve, the pressure limiting valve can up or down be set in the row of electrical heating cooking apparatus
At steam pipe mouth, it is characterised in that the pressure-regulating device includes：
The first magnet on the pressure limiting valve；
The regulator board being set on the gland steam exhauster, is provided with second attracted each other with first magnet on the regulator board
Magnet；
Screw rod；
Drive rod, on a bar side of the drive rod screwed hole being engaged with the screw rod is provided with；
Motor, forms installing plate, one end of the screw rod and the motor on the shell of the motor
Rotor is connected, and the other end is screwed into the screwed hole and is rotatably coupled with the installing plate, and the rotor can drive the spiral shell
Bar can drive the drive rod straight line to stretch out or straight line retraction along own axis, the rotation of the screw rod, the driving
The straight line of bar stretches out or straight line is retracted can drive the regulator board to move along the axis of the gland steam exhauster, to adjust described first
The distance between magnet and described second magnet, and then change the pressure limiting pressure of the pressure limiting valve；With
Electric-controlled plate, the electric-controlled plate is connected with the motor, for controlling the work of the motor.
5. the pressure-regulating device of pressure limiting valve according to claim 4, it is characterised in that
Also include：Back-moving spring, one end of the back-moving spring is connected with the regulator board, and the other end is cooked with the electrical heating
The pot cover of utensil of preparing food is connected.
6. the pressure-regulating device of the pressure limiting valve according to claim 4 or 5, it is characterised in that
First magnet and second magnet are ferromagnet or permanent magnet.
7. a kind of electrical heating cooking apparatus, it is characterised in that include：
Pot, is provided with electric-controlled plate and heater in the pot, the heater is connected with the electric-controlled plate, described
Electric-controlled plate can control the work of the heater；
Pot cover, the pot cover can be opened or is connected with the pot with closing, and gland steam exhauster, the gland steam exhauster are provided with the pot cover
Upper installation limited valve；With
The pressure-regulating device of the pressure limiting valve as described in any one of claim 1 to 6 claim, the pressure-regulating device
Regulator board be arranged in the pot cover, the motor of the pressure-regulating device is arranged in the pot cover or pot
On, the motor is connected with the electric-controlled plate, and can control the work of the motor.
8. electrical heating cooking apparatus according to claim 7, it is characterised in that
Also include：
Pressure-detecting device, the pressure-detecting device is arranged on pot cover, and is connected with the electric-controlled plate, for detecting
The pressure in electrical heating cooking apparatus is stated, the electric-controlled plate sends control instruction according to the pressure value for detecting.
9. electrical heating cooking apparatus according to claim 8, it is characterised in that
The pressure-detecting device is pressure transducer or temperature sensor.
10. the electrical heating cooking apparatus according to any one of claim 7 to 9, it is characterised in that
The motor is arranged in the pot, and the pot cover includes：
Inner cap；With
Cover, the cover is fixedly connected with the inner cap, and guide post is provided with the cover, the pressure-regulating device
The gathering sill being engaged with the guide post is provided with regulator board, the back-moving spring of the pressure-regulating device is located at described leading
Into groove, one end is resisted against on the end face of the guide post.
The 11. electrical heating cooking apparatus according to any one of claim 7 to 9, it is characterised in that
The electrical heating cooking apparatus is electric pressure cooking saucepan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410447246.3A CN105380505B (en) | 2014-09-03 | 2014-09-03 | Pressure adjusting device for pressure limiting valve and electric heating cooking utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410447246.3A CN105380505B (en) | 2014-09-03 | 2014-09-03 | Pressure adjusting device for pressure limiting valve and electric heating cooking utensil |
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| CN105380505A CN105380505A (en) | 2016-03-09 |
| CN105380505B true CN105380505B (en) | 2017-05-17 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108261055B (en) * | 2016-12-30 | 2024-01-19 | 浙江绍兴苏泊尔生活电器有限公司 | Electric pressure cooker |
| CN107550257A (en) * | 2017-09-27 | 2018-01-09 | 佛山市爱米吧科技有限公司 | Magnetic suspension stepless voltage regulation control device and cooking apparatus |
| CN108968660A (en) * | 2018-05-16 | 2018-12-11 | 浙江绍兴苏泊尔生活电器有限公司 | Electric pressure cooker |
| CN109567578B (en) * | 2018-08-17 | 2021-03-23 | 浙江绍兴苏泊尔生活电器有限公司 | Boiling control method and electric pressure cooker using same |
| CN114073402A (en) * | 2020-08-19 | 2022-02-22 | 广东万事泰集团有限公司 | Pressure cooker |
| BE1029535B1 (en) * | 2021-06-29 | 2023-01-30 | Berghoff Worldwide Nv | PRESSURE COOKER WITH MULTIPLE HIGH PRESSURE MODES |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339119Y (en) * | 1998-09-23 | 1999-09-22 | 广东容声电器股份有限公司 | Timed pressure-retaining and pressure-regulating mechanism for electric pressure cooker |
| ES2577305T3 (en) * | 2006-07-25 | 2016-07-14 | Wmf Group Gmbh | Pressure cooker |
| CN102697388B (en) * | 2012-06-26 | 2014-06-25 | 广东洛贝电子科技有限公司 | Electric pressure cooker with full-automatic pressure regulation and full-automatic pressure regulation method thereof |
| CN202619366U (en) * | 2012-06-26 | 2012-12-26 | 广东洛贝电子科技有限公司 | Full-automatic pressure regulation electric pressure cooker |
| CN204033084U (en) * | 2014-09-03 | 2014-12-24 | 佛山市顺德区美的电热电器制造有限公司 | The pressure-regulating device of pressure limiting valve and electrical heating cooking apparatus |
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